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Related Experiment Videos

Cocaine-induced wide complex dysrhythmia

W Kerns1, L Garvey, J Owens

  • 1Department of Emergency Medicine, Carolinas Medical Center, Charlotte, North Carolina 28232-2861, USA.

The Journal of Emergency Medicine
|May 1, 1997
PubMed
Summary
This summary is machine-generated.

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Cocaine can cause dangerous heart rhythms by blocking sodium channels. Intravenous bicarbonate effectively treats these cocaine-induced wide complex dysrhythmias, a rare but serious complication.

Area of Science:

  • Cardiology
  • Toxicology
  • Emergency Medicine

Background:

  • Cocaine acts as a local anesthetic, potentially causing cardiac dysrhythmias through myocardial sodium channel antagonism.
  • Class I antidysrhythmic drugs share similar mechanisms, with wide complex dysrhythmia being a hallmark of sodium channel poisoning.
  • Optimal management for cocaine-induced wide complex dysrhythmia, especially without myocardial infarction, remains undefined.

Observation:

  • Three cases of acute cocaine intoxication presented with wide complex dysrhythmia.
  • The dysrhythmias observed were consistent with sodium channel poisoning.
  • One patient's wide complex tachycardia resolved spontaneously without specific intervention.

Findings:

  • Intravenous bicarbonate therapy was administered in two cases of cocaine-induced wide complex dysrhythmia.

Related Experiment Videos

  • Bicarbonate administration led to the resolution of wide complex dysrhythmia in these patients.
  • The treatment targeted the reversal of sodium channel blockade caused by cocaine.

    • Implications:

    • Intravenous bicarbonate is a potential treatment for cocaine-induced wide complex dysrhythmia.
    • This approach may be beneficial in managing severe cardiac toxicity from cocaine.
    • Further research is warranted to establish definitive treatment guidelines for this rare condition.